Instantaneous hot-water heater



July 24, 1923.

H. SIRO T ET AL INSTANTANEOUS HOT WATER HEATER Filed Oct. 25'. 1920 no 0 0 O o lllllllll 0 I133 Qllllll" ATTORNEYS I Patented July 2 3-, i923.

iaeaa HYIVIAN SIROT AND HARRY SIROT, OF NEW YORK, N. Y.

INSTANTANEOUS HOT-WATER HEATER.

Application filed October 25, 1920. Serial No. 419,555.

T 0 all whom it may concern:

Be it known that we, TIYMAN 5511201: and HARRY Srnor, citizens of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Instantaneous Hotater Heaters, of which the following is a specification.

The main object of this invention is to provide a device by means of which one may in a very brief interval of time heat water for the provision of a bath, washing dishes, or for any other family use.

The above and other objects will become apparent in the description below, in which like characters of reference refer to likenained parts in the drawings.

Referring briefly to the drawings, Fig. 1 is a plan view of the device.

Fig. 2 is a plan view of the underslde of the same.

Fig. 3 is a front elevational View of the same, partly in section.

Figure 4% is a transverse sectional view taken on line 55 of Fig. 3 showing the parts in one position, and

Figure 5 is a similar view on the same line, showing the parts in another position.

Referring now in detail to the drawings, the numeral 1 represents the upper or cap portion of the casing 2 of the heater which may be applied about a water pipe 3, as shown, and locked in place by.means of a lock-member screw 5 engaging the end 4: of the pipe.

An arcuate substantially circular flange 2 is rigid with the cap, and is of solid construction, preferably of steel. A solid, substantially cylindrical core 6, of similar material, is rigid with the member 2 and depends axially therefrom. A helical coil 7 is rigid with said core 6 and surrounds the latter, the coil being hollow for the passage of water therethru as at 8, and the lower wall is upwardly concave, as inclicated at 9 its entire length.

A second coil 10 surrounds the core 6, its coils being intermediate those of the coil 7 so that each successive turn of the coil 10 lies directly below a turn of the coil 7. The coil 10 is of hollow construction, in the form of a flattened pipe 11, and is provided with a plurality of spaced apart openings 12. i p

A pet-cock 13 is provided at the lower end of the coil 10, and a threaded end 1 1 at the lower end of the coil 7, the former being adapted to be attached to a gas-pipe for the inlet of gas, and the latter to a water pipe for the entrance of water.

v The pipe 3 will be ledto a faucetsituated at whatever point the hot water is desired.

VVhengas is turned on at the petcock 13 and permitted to flow thru the coil 10, the same emerges from the openings 12, where it is ignited. "The heat given off by the flames rises against the coil 7, the water contained therein being thereby heated. After a short time the wall of the coil 7, and the core 6, will have absorbed heat and become relatively hot, thus aiding in the heating of the water. Furthermore, the heat contained in the solid core 6 and coil 7 will tend to keep the water hot for a time after the flow of gas is cut off. The curvature of the base element 9 of the coil tends to retain the heat from the gas flame under it, thus reducing wasteful radiation to a minimum.

The locking device, controlled by the key 5, is shown in detail in Figs. 4L and 5, being locked in the latter and released in the former. A substantially T-shaped stem 16 enters the cap 1 and constitutes an extension of the key, a collar 17 being rigid upon the stem 16 outside the cap to limit the inward movement of the members. The arms 18 of said T-shaped stem are provided with pivotally attached pins 19 adapted to engage depressed recesses 20 in the pipe 3. A boss 21 serves to check the inward movement of the stem 16. It is apparent from the drawings that, upon withdrawing the key 5, the pins 19 will be with drawn from the recesses 20, so that the entire device may be detached. Similarly, in attaching the device, the key 5 is forced inward, locking the device upon the pipe by means of the fingers or pins 19 being engaged in the recesses 20.

We claim:

1. A water heater comprising a cap, means for attaching said cap to a waterpipe, an arouate flange rigid with said cap, a core rigid with and depending from said flange, a pair of hollow coils surrounding said core, one of said coils being rigid with said core, its lower wall being upwardly concave, and the other of said coils .pro-,

.vided with a plurality of spaced ignition openings.

2.'A Water heater comprising a cap, means for attaching said cap to a. Water pipe, said means comprising a transversely keyed stem slidably mounted in said cap, recesses in said Water pipe, pins pivotally attached to said stem Within said cap, said pins being adapted to engage said recesses, a pair of coils arranged alternately below said cap, one of said coils communicating With the said pipe and the other with a gas supply source and a plurality of burner openings in the last named coil adapted to direct flames against the Wall of the first named coil. i

3. A water heater comprising a cap, means for attaching said cap to a Water pipe, said means comprising, a locking member slidably mounted in said cap engaging recesses in said pipe, an areuate flange at the base of said cap, a core eX- tending below the cap, a flattened tubular coil encircling said core, said coil communicating With said Water pipe and having its lower Walls concavely curved, a second coil disposed in alternate relation with the first named coil, said second coil having perforate Walls, and connections for a gas to enter said second coil. I

In Witness whereof We aifiX our signatures.

v HARRY SIROT.

HYMAN SIROT. 

